The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/toolkit/crashreporter/google-breakpad/src/common/linux/safe_readlink_unittest.cc	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,89 @@
     1.4 +// Copyright (c) 2011, Google Inc.
     1.5 +// All rights reserved.
     1.6 +//
     1.7 +// Redistribution and use in source and binary forms, with or without
     1.8 +// modification, are permitted provided that the following conditions are
     1.9 +// met:
    1.10 +//
    1.11 +//     * Redistributions of source code must retain the above copyright
    1.12 +// notice, this list of conditions and the following disclaimer.
    1.13 +//     * Redistributions in binary form must reproduce the above
    1.14 +// copyright notice, this list of conditions and the following disclaimer
    1.15 +// in the documentation and/or other materials provided with the
    1.16 +// distribution.
    1.17 +//     * Neither the name of Google Inc. nor the names of its
    1.18 +// contributors may be used to endorse or promote products derived from
    1.19 +// this software without specific prior written permission.
    1.20 +//
    1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.32 +
    1.33 +// safe_readlink_unittest.cc: Unit tests for google_breakpad::SafeReadLink.
    1.34 +
    1.35 +#include "breakpad_googletest_includes.h"
    1.36 +#include "common/linux/safe_readlink.h"
    1.37 +
    1.38 +using google_breakpad::SafeReadLink;
    1.39 +
    1.40 +TEST(SafeReadLinkTest, ZeroBufferSize) {
    1.41 +  char buffer[1];
    1.42 +  EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, 0));
    1.43 +}
    1.44 +
    1.45 +TEST(SafeReadLinkTest, BufferSizeTooSmall) {
    1.46 +  char buffer[1];
    1.47 +  EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, 1));
    1.48 +}
    1.49 +
    1.50 +TEST(SafeReadLinkTest, BoundaryBufferSize) {
    1.51 +  char buffer[PATH_MAX];
    1.52 +  EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer, sizeof(buffer)));
    1.53 +  size_t path_length = strlen(buffer);
    1.54 +  EXPECT_LT(0U, path_length);
    1.55 +  EXPECT_GT(sizeof(buffer), path_length);
    1.56 +
    1.57 +  // Buffer size equals to the expected path length plus 1 for the NULL byte.
    1.58 +  char buffer2[PATH_MAX];
    1.59 +  EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer2, path_length + 1));
    1.60 +  EXPECT_EQ(path_length, strlen(buffer2));
    1.61 +  EXPECT_EQ(0, strncmp(buffer, buffer2, PATH_MAX));
    1.62 +
    1.63 +  // Buffer size equals to the expected path length.
    1.64 +  EXPECT_FALSE(SafeReadLink("/proc/self/exe", buffer, path_length));
    1.65 +}
    1.66 +
    1.67 +TEST(SafeReadLinkTest, NonexistentPath) {
    1.68 +  char buffer[PATH_MAX];
    1.69 +  EXPECT_FALSE(SafeReadLink("nonexistent_path", buffer, sizeof(buffer)));
    1.70 +}
    1.71 +
    1.72 +TEST(SafeReadLinkTest, NonSymbolicLinkPath) {
    1.73 +  char actual_path[PATH_MAX];
    1.74 +  EXPECT_TRUE(SafeReadLink("/proc/self/exe", actual_path, sizeof(actual_path)));
    1.75 +
    1.76 +  char buffer[PATH_MAX];
    1.77 +  EXPECT_FALSE(SafeReadLink(actual_path, buffer, sizeof(buffer)));
    1.78 +}
    1.79 +
    1.80 +TEST(SafeReadLinkTest, DeduceBufferSizeFromCharArray) {
    1.81 +  char buffer[PATH_MAX];
    1.82 +  char* buffer_pointer = buffer;
    1.83 +  EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer_pointer, sizeof(buffer)));
    1.84 +  size_t path_length = strlen(buffer);
    1.85 +
    1.86 +  // Use the template version of SafeReadLink to deduce the buffer size
    1.87 +  // from the char array.
    1.88 +  char buffer2[PATH_MAX];
    1.89 +  EXPECT_TRUE(SafeReadLink("/proc/self/exe", buffer2));
    1.90 +  EXPECT_EQ(path_length, strlen(buffer2));
    1.91 +  EXPECT_EQ(0, strncmp(buffer, buffer2, PATH_MAX));
    1.92 +}